Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here


OSHA Requirements for Hydrostatic Testing

OSHA Requirements for Hydrostatic Testing

OSHA Requirements for Hydrostatic Testing

Hello everyone,

I will be working in setting up a hydrostatic testing (following B31.3) area inside a spool fabrication building. Spool sizes will be up to NPS 8. As of now, I do not know what will be the maximum pressure. The highest I've seen have been D Pressure Class.
Well, I've been searching online for what are OSHA requirements in regards to barricading and safety measures but without any luck. Would anyone know where I can obtain this information?

RE: OSHA Requirements for Hydrostatic Testing

If you are using water for the hydrostatic test, there are no requirements because water is considered a non-compressible fluid for purposes of hydrostatic testing. Most shops have an area cordoned off to conduct hydrostatic tests with temporary splash shields and floor drains to protect surrounding equipment in the event of a water leak.

RE: OSHA Requirements for Hydrostatic Testing


That is correct, water will be used. Could you share on any guidelines to follow on how much of an area must be closed for the test depending on the pressure level?

RE: OSHA Requirements for Hydrostatic Testing

Based on the numerous shop audits I have been on over the years, I would say you have two options; use a staging area after the spools are completed/stored to perform the hydrostatic test using treated water and a pump with fittings. The other option is to use part of the production floor after completion of each spool to pressurize and test. I would use hazard tape on the shop floor to cordon off the area, depending on the size of the spool for a distance of 3 feet, for each test. This should be described in your QA manual regarding test plans.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close